cz-agents.dev

curl https://ares.cz-agents.dev/sandbox/v1/companies/60193531

Available servers

Premium tier — closed source extensions

Hosted-only paid MCP servers — Bearer token authenticated. See pricing for tier details.

Built with cz-agents

Production application built on top of the same MCP servers — proves the data plane works end-to-end and shows what an "AI agent for Czech data" can do.

Claude Desktop / Cursor

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "ares":        { "command": "npx", "args": ["-y", "@czagents/ares"] },
    "cnb":         { "command": "npx", "args": ["-y", "@czagents/cnb"] },
    "sanctions":   { "command": "npx", "args": ["-y", "@czagents/sanctions"] },
    "isir":        { "command": "npx", "args": ["-y", "@czagents/isir"] },
    "adis":        { "command": "npx", "args": ["-y", "@czagents/adis"] },
    "dd":          { "command": "npx", "args": ["-y", "@czagents/dd"] },
    "eu-registry": { "command": "npx", "args": ["-y", "@czagents/eu-registry"] }
  }
}

Remote HTTP (no npm)

Free tier requires no token. Paid tiers add "headers": { "Authorization": "Bearer czat_..." }.

{ "mcpServers": {
    "ares":         { "url": "https://ares.cz-agents.dev/mcp" },
    "cnb":          { "url": "https://cnb.cz-agents.dev/mcp" },
    "sanctions":    { "url": "https://sanctions.cz-agents.dev/mcp" },
    "isir":         { "url": "https://isir.cz-agents.dev/mcp" },
    "adis":         { "url": "https://adis.cz-agents.dev/mcp" },
    "dd":           { "url": "https://dd.cz-agents.dev/mcp" },
    "eu-registry":  { "url": "https://eu-registry.cz-agents.dev/mcp" }
}}

REST API

Same data as MCP, plain GET requests. Free endpoints need no auth — just curl. Paid calls add Authorization: Bearer czat_.... → Full REST API reference

# company lookup (free)
curl https://ares.cz-agents.dev/v1/companies/{ico}

# sanctions screen (free)
curl "https://sanctions.cz-agents.dev/v1/sanctions/check?ico={ico}"

# full DD report (paid)
curl -H "Authorization: Bearer czat_..." https://dd.cz-agents.dev/v1/dd/{ico}

Response envelope: {"data": {...}, "meta": {"fetched_at": "...", "source": "ares"}} — see all endpoints.

Data principles

cz-agents uses only state-guaranteed public registries: ARES (MoF), ČNB, ISIR (Justice), EU FSF, OFAC SDN. We do not buy from professional-chamber paywalls (Centrální evidence exekucí) or commercial resellers (Cribis, Bisnode). Public data should stay free at the point of use — your subscription pays for maintenance, not for renting access to data the state already publishes.

Pricing

ARES & ČNB are free, unlimited for everyone. Sanctions and DD have a free tier with daily limit; paid tiers below remove it and add features (alerts, batch, statutory chain). Cancel anytime.

@czagents/sanctions

@czagents/dd

After paying you'll be redirected to a page showing your API token — save it in a password manager. Need a custom plan, on-premise install, or invoicing for a Czech company? Email me.

Example

Synthetic data — IČO and details below are fictional, used only to illustrate response shape.

User: Run a due-diligence report on IČO 12345679.

Agent → get_dd_report(ico="12345679", depth="full")
        ↳ ARES + EU/OFAC sanctions + statutory body screen

Acme Imports s.r.o. — Pražská 100, Praha 1, founded 2018.
VAT-registered (CZ12345679). Statutory: Jan Novák (since 2023-04-12).
Sanctions: NO MATCH (0/24,856 records).
Personal insolvency check on Jan Novák: no match.
Govt-address check on residence: no match (regular street address).
Prior-bankrupt-company check by surname: no match.
Risk score: 12/100 (low) — flagged: missing transparent VAT account.

Further reading

Building MCP servers for a country that isn't in the dataset — design rationale, the MOD11 gotcha, ARES Swagger bugs, and how this pattern adapts MCP to non-English locales.

Listings: official MCP Registry (DNS-verified namespace dev.cz-agents/*) · awesome-mcp-servers (@czagents/cnb merged in #5407; ares, adis, isir, sanctions, dd open in #5406, #5735–#5738) · Glama.